Filter.



G. M. 'KNEUPER.

FILTER. APPLICATION FILED NOV. 38, 1908'.

Patented June 21, 1910.

INVENTOR WITNESSES ANDREW a. GRAHAM co, FHOTO-LITNOGRAFHERS v Asummon ac.

GEORGE M. KNEUPER, OF NE'W' YORK, N. Y.

FILTER.

Application filed. November 28, 1908.

Specification of Letters Patent.

Patented June 21, 1910.

Serial No. 464,872.

T 0 all whom it may concern:

Be it known that I, Gnoncn M. KNEUPER, United States citizen, resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Filters, of which the following is a specifica tion.

My invention relates to filters and has for its object to improve the construction and efiiciency thereof and particularly to provide a means for permitting any water which may remain in the filter after the cock has been closed to drain ofi.

My invention will be fully described hereinafter and the features of novelty will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings in which- Figure 1 is an elevation of my improved filter and Fig. 2 is a sectional View thereof on line 22 of Fig. 1.

In the drawings A is a pipe connected with a valve casing B, which in turn is connected by means of an inlet pipe G with a source of liquid supply. D is a nozzle which also communicates with the said valve casing B in which is operatively located the valve or cook E. Apassage E is formed in the said valve or cock, which valve is operated through the medium of the handle E the usual stops being provided for limiting the movement in either direction.

F is a receptacle which forms part of or is secured to the pipe A at a distance above the valve casing B and F is the outlet for the filtered liquid.

G is a support formed of spaced bars having their ends secured in rings G, and G is the filtering material which is wrapped around said support and secured thereon by the perforated cylinder G The filtering material G is somewhat wider than either the support Gor the cylinder G and the ends thereof are turned inward as clearly shown in Fig. 2. A plate H is arranged to slip over the pi e A and engages the upper inturned portlon of the filtering material and is secured in position by a nut H which screws on the pipe A at A, a washer H being interposed between the nut and the plate H. As the nut is screwed down on the pipe the filtering material with the support G and cylinder G is clamped in position about the pipe A between the bottom of the receptacle F and the plate H. A cover I of glass or similar material has its one end in engagement with a ring washer I located at the upper edge of the receptacle F and is provided at its other end with a central aperture through which the pipe A extends. The upper end of the pipe A is screw-threaded to receive the air chamber J, the lower part of which abuts against a washer J adjacent to the upper end of the cover I and serves to secure the said cover in position.

J 2 is an air inlet valve located in a chambered plug J 3 which screws into the upper portion of the air chamber J.

The pipe A is provided at a point within the support G with an aperture A and is further provided with openings A and A. The openings A are so positioned on the pipe A as to be flush with the bottom of the receptacle F, while the openings A are located in a slightly higher plane.

K is a metal or other cylinder which loosely surrounds the pipe A at the point where the openings A and A are located and rests on the bottom of said receptacle F.

L is a passage formed in the valve casing B the purpose of which will be more clearly brought out hereinafter.

In operation when a supply of filtered liquid is desired the handle E is turned down until the passage E establishes communication between the inlet pipe G and the pipe A. The liquid now flows through said passage E and pipe A and out through the openings A and A and is difiused by the cylinder K so as not to continually strike the filtering material in the same spot. From the interior of the support G the liquid passes through the filtering material and through the perforated cylinder G and out through the outlet F. As soon as the cock is opened as just described the air contained in the interior of the filter is compressed by the rising liquid and closes the air valve J and is then forced through the filtering material by the continued pressure of the liquid entering through the pipe A. This results in a perfect aeration of the filtering mass. After enough filtered liquid has been secured, the handle E is moved back to its initial position which brings the valve or cook E to the position shown in Fig. 2. In this position the passage E connects the pipe A with the passages L so that any liquid which remains in the interior of the support G will flow under the cylinder K and back through the openings A into the pipe A. From the pipe A the said liquid will pass through the passage E and will flow out through the passage L. During this operation air will enter through the air chamber into the pipe A and through the opening A to the space between the support G and the pipe A. The filter is thus completely emptied each time and it is impossible for any liquid to remain in the filter and become stagnant. When unfiltered liquid is desired. the handle E is moved down until the passage E establishes communication between the pipe C and the nozzle D.

Various modifications may be made without departing from the nature of my invention as defined in the claims.

I claim as my invention:

1. In a filter, a casing provided with an outlet, an inlet pipe extending through said casing and communicating at the top with an air chamber and provided near the bottom of said casing with apertures, a ring surrounding said inlet pipe at the apertures rounding said pipe at the apertures andv spaced therefrom for difi'using the entering liquid, a support surrounding said pipe, a filtering material arranged on said support and means on said pipe for maintaining said filtering material and supporting operative position.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GEORGE M. KNEUPER.

Witnesses:

JOHN A. KEHLENBEQK, JOHN Lo'rKA; 

